- Marqibo(Registered Trademark) will be administered intravenously over 60 minutes (+ or -10 minutes) every 7 days (+ or - 3 days) (Days 1, 8, 15, 22) for four doses (1 cycle). Cycles may be repeated every 28 days for a maximum of 6 cycles; additional cycles may be offered with evidence of acceptable toxicity and clinical benefit.